An adaptation control for acoustic echo cancellers

An adaptation control for acoustic echo cancellers

Acoustic echo cancellation algorithms need a reliable adaptation control to cope with changing systems and nonstationary signals. A variable stepsize is proposed that is based on the detection of speakers' activities, and involves estimates of system parameters and background noise. Real-time e...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:IEEE signal processing letters 1997-06, Vol.4 (6), p.170-172
1. Verfasser: Heitkamper, P.
Format: Artikel
Sprache:eng
Schlagworte:
Acoustic signal detection
Adaptive filters
Background noise
Control systems
Echo cancellers
Finite impulse response filter
Parameter estimation
Speech analysis
Telephony
Workability
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Acoustic echo cancellation algorithms need a reliable adaptation control to cope with changing systems and nonstationary signals. A variable stepsize is proposed that is based on the detection of speakers' activities, and involves estimates of system parameters and background noise. Real-time experiments demonstrate the workability in practice.
ISSN:1070-9908
1558-2361
DOI:10.1109/97.586039